| From: | "Tomas Vondra" <tv(at)fuzzy(dot)cz> |
|---|---|
| To: | "Mark Felder" <feld(at)feld(dot)me> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: How to analyze load average ? |
| Date: | 2012-08-06 15:27:18 |
| Message-ID: | a6709c5f02986813a5cf5743ab4ba93f.squirrel@sq.gransy.com |
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| Lists: | pgsql-general |
On 6 Srpen 2012, 16:54, Mark Felder wrote:
> On Mon, 06 Aug 2012 09:38:33 -0500, Tomas Vondra <tv(at)fuzzy(dot)cz> wrote:
>
>> Load average is defined as a number of processes in the run queue
>
> That depends on if he's running Linux or BSD.
>
> http://www.undeadly.org/cgi?action=article&sid=20090715034920
Well, even this link states that "... most unixen load average is some
measure of the size of the run queue - or the number of runnable processes
over a set period" and in this sense what I said is true even on BSD
systems. But you're right, the definitions are a bit different.
Although the OP mentioned he's using ext4, so I suppose he's running Linux
(although I know there was some ext4 support e.g. in FreeBSD).
Still, the load average 0.88 means the system is almost idle, especially
when there's no I/O activity etc.
Tomas
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